The evidence supports iron (targeting ferritin above 50 ng/mL), zinc (15-30mg daily), vitamin D (2,000-5,000 IU daily), biotin (5,000mcg daily), a B-complex, and adequate protein (1.0-1.6g per kg body weight)
Clean and store the accessory according to its directions
B vitamins are coenzymes needed for energy production, proper nerve function, normal vision and skin health, digestive system health, protein metabolism, carbohydrate metabolism, red blood cell formation, DNA and RNA synthesis, fatty acid synthesis, amino acid synthesis and the manufacture of sex and stress related hormones
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These can include dry skin, higher risk of skin infections, and (ironically) hyperpigmentation, i.e., increased skin darkening